Car-warmer



(No Model.)

2 SheetsSheet 1. J. Q. 0. SEARLE.

GAR WARMEE.

No. 311,534. Patented Feb. 3, 1885.

IM M

(No Model.) 2 Sheets-Sheetffi, J. Q. 0. SEARLE. UAR WARMER.

Patented Feb. 3, 1885.

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JOHN Q. C. SEARLE, OF CHICAGO, ILLINOIS.

CAR WARMER.

SPECIFICATION forming part of Letters Patent No. 311,531 dated February 3, 1885.

Application filed March 17, 1884.

T0 (rZZ whom it may concern:

Be it known that 1, JOHN Q. G. SEARLE, of Chicago. in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Oar-\Varmers, of which the following is a specification.

My invention is in the nature of an improvement upon that class of car-warmers in which heated water is caused to circulate from end to end of the car through bent radiatorpipcs placed under the carseats, and relatesto the manner of supplying the heated water to the radiators, and has for its object thcproduction of an oven temperature upon both sides and from end to end of the car.

In the ordinary arrangement of pipes and radiators of a circulation system for railwaycars the hot water flows from the upper leg or head of the heating-coil through one set of radiators down one side of the car, thence across under the floor to the opposite side of car, thence up the opposite side through the radiators under the ('ar-seats,and finally across the car under the floor to the lower leg or foot of coil,where the cooled water is again heated and forced from the upper leg of coil around the car,as before. The general circuit is that of a reciangle formed by thesides and ends of car, at one corner of which the heating stove and coil is usually located. The objection to this system of pipes and radiators is,that one side of the car is invariably found to be warmer than the other, and, similarly, the remote end of car is cooler than the end next to the stove or origin of heat.

In the accompanying drawings, Figure 1 is the interior of a railway passenger-coach, showing in elevation the heating'stove, expansion-chamber, and system of circulation-pipes upon one side thereof. Figs. 2, 3, and 4 are detailed views of special fittings required in my improved arrangement of circulationpipes. Fig. 5 is a plan view on line 00 00 of Fig. 1 of my improvement, and Fig. 6 a detached View of part of thesystem ofcirculation-pipes.

Similar letters of reference indicate similar parts.

A is the body of a railway passenger-coach, in one end of which the heating-stove B is placed. The stove contains the customary (No model.)

heating-coil or any approved form of waterheating device.

C is the upper leg or nipple and fittings connecting with head of coil.

G is the lower leg or nipple and fittings connecting with foot of coil.

D is theleading-pipe, conducting the water from upper leg of coil to'the system of circulationpipes.

E is the stand-pipe, connecting special fitting E with expansionchamber E 6 e are respectively the safety-valve and blow-out cock on expansion-chamber.

The special fitting E is constructed with a downwardly-curved lip, c, as shown in sec tion by Fig. 1, by means of which the current of heated water is deflected down the pipe E, while the excess of water or air or vapor is passed upward around the curved lip to expausioirchamber E. I do not here claim the fitting E, as it forms part of my application for Letters Patent filed November24, 1883, Serial No. 113,479.

F is a special fitting, (shown in section and elevation in Figs. 2 and 3,) connected at one end with the leading-pipe D, at the opposite end with the nearest one of radiators H, and by the branch 1'' with pipe G, which latter pipe passes downward through the car-floor, thence across under the car to the opposite side thereof, then upward through car-floor, and then along under radiators II to the re mote end of car-,where it connects by returnbend with the first one of said radiators. The end of fitting F receiving pipe D and the branch f receiving pipe G are of full pipe sizesay one and one-quarter inch-while the end connecting with the radiator II, Fig. 5, is diminished in diameter by the annular diaphragm fto such an area in relation to area of pipe G as will cause the heated water from pipe D flowing into the fitting F to be divided between the pipe G and radiators H proportionally to the heating effects required upon the respective sides of car, (the radiators H lying under the car-seats upon one side thereof, while the pipe G, as described, conveys the heated water to the radiators I-I, lying under the seats upon opposite side ofcar.) The relation of. the orifice in diaphragm f to 100 orifice in pipe G will depend upon the relative heating effects required upon opposite sides of car, and it may be necessary in some special-forms of cars-as directors or paymasters cars with internal compartments, requiring special adaptation of radiators H or Hto transfer the diaphragm ffrom the end of fitting F, as shown in Fig. 2, to the branch fthereof. In the customary application, however, the diminished opening will occur in end of fitting F, as shown. After the heated water has been proportionally divided into two quantities, as described, that portion delivered to radiators H passes down through these radiators to the remote end of car, where, by return-bend (or elbow and nipple) from the last radiator, it is conducted into return-pipe h, which return-pipe conveys the cooled water back to special fitting F, the construction and operation of which fitting will be fully described hereinafter. That portion of the heated water which has meanwhile been delivered by pipe G to themost remote of radiators H passes back through these radiatorsvto the stove end of car, where, by return-bend, (or elbows and nipple,) the radiators are connected with fltlllIl-IJlPB h, which pipe lies under the radiators and runs along the car-floor to elbow F", where it bends down' under car-floor and passes transversely across to stove side of car, and then passes up through the floor and enters the branch f of fitting F. The pipe G from fitting F conducts the returnwater back to connections 0 oflowerleg of coil in stove B.

The special fitting F is provided with a curved lip, f to deflect the return from radiators H coming through pipe h in the direction of main returupipe G, as shown by arrows in Fig. 4.

The special fitting F connects the leadingpipe D directly with the radiators H upon stove side of car, and through the pipe G with the radiators H upon the opposite side of car,

- while the special fitting F unites the separate returns from the two sets of radiators in a single return to the heating-coil.

The circulation of heated water through the described system of special fittings, pipes,

and radiators is as follows: Water being heated in the coil of stove B, it flows from upper leg, 0, through fitting E and pipe D, to special fitting F, where it is divided into two proportional quantities, as described, one quantity flowing through radiators H, and returning through pipe h to special fitting F, and the other flowing through pipe G and radiators H, and returning through pipe h to special fitting F, where the two distinct returns unite and flow back to heating-coil, to be again warmed and repeat above circuit indefinitely.

I have spoken of C and O as the upper and lower legs of a heating-coil, as this is the device generally employed for warming the water; but the parts 0 and C are only used to indicate the outlet for heated water and inlet for the cooled water of the heating device, and any approved form of water-heater is admissible equally with a heating-coil for my purose. p Having described my invention, what I claim is In a hot-water warming apparatus, the heater B, the supply-pipe D, the fitting F, which divides the supply-pipe into two branches. the branch H, extending from the fitting F in a series of bends to the end of the car farthest from the heater, and returning by a straight pipe, 71 to a fitting, F, located near the heater, the branch G, running from the fitting underneath the floor to the opposite side of-the car, thence to the further end of the same, retu rning in a series of bends, H, to the end of the car nearest the heater, then doubling back by the pipe h to a point where it crossed, and recrossing under the floor, to make a connection with the fitting F, the fitting F, which joins the return-pipes h and h, and the mainreturnpipe G, all combined and arranged as and for the purpose set forth.

In testimony whereofl have signed my name to the foregoing specification in the presence of two subscribing witnesses. I

JOHN Q. C. SEARLE.

Witnesses: I

JOHN W. HILL, CHAS. ANDERSON. 

